drivers/gpu/drm/i915/intel_guc.h

   1 /*
   2  * Copyright © 2014 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24 #ifndef _INTEL_GUC_H_
  25 #define _INTEL_GUC_H_
  26
  27 #include "intel_guc_fwif.h"
  28 #include "i915_guc_reg.h"
  29
  30 enum intel_guc_fw_status {
  31         GUC_FIRMWARE_FAIL = -1,
  32         GUC_FIRMWARE_NONE = 0,
  33         GUC_FIRMWARE_PENDING,
  34         GUC_FIRMWARE_SUCCESS
  35 };
  36
  37 /*
  38  * This structure encapsulates all the data needed during the process
  39  * of fetching, caching, and loading the firmware image into the GuC.
  40  */
  41 struct intel_guc_fw {
  42         struct drm_device *             guc_dev;
  43         const char *                    guc_fw_path;
  44         size_t                          guc_fw_size;
  45         struct drm_i915_gem_object *    guc_fw_obj;
  46         enum intel_guc_fw_status        guc_fw_fetch_status;
  47         enum intel_guc_fw_status        guc_fw_load_status;
  48
  49         uint16_t                        guc_fw_major_wanted;
  50         uint16_t                        guc_fw_minor_wanted;
  51         uint16_t                        guc_fw_major_found;
  52         uint16_t                        guc_fw_minor_found;
  53 };
  54
  55 struct intel_guc {
  56         struct intel_guc_fw guc_fw;
  57
  58         uint32_t log_flags;
  59         struct drm_i915_gem_object *log_obj;
  60
  61         struct drm_i915_gem_object *ctx_pool_obj;
  62         struct ida ctx_ids;
  63 };
  64
  65 /* intel_guc_loader.c */
  66 extern void intel_guc_ucode_init(struct drm_device *dev);
  67 extern int intel_guc_ucode_load(struct drm_device *dev);
  68 extern void intel_guc_ucode_fini(struct drm_device *dev);
  69 extern const char *intel_guc_fw_status_repr(enum intel_guc_fw_status status);
  70
  71 /* i915_guc_submission.c */
  72 int i915_guc_submission_init(struct drm_device *dev);
  73 void i915_guc_submission_fini(struct drm_device *dev);
  74
  75 #endif